A microjoule (uJ) is a metric-prefixed unit of energy equal to 10-6 joules, a fraction of a single joule, using the SI micro prefix.
Microjoules to Nanojoules
Convert Microjoule (uJ) to Nanojoule (nJ) instantly with an exact formula, conversion table, and FAQ.
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Convert microjoules (uJ) to nanojoules (nJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
nJ = uJ × 1000
Results update instantly for Microjoules to Nanojoules conversions.
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Formula
nJ = uJ × 1000
uJ = nJ × 0.001
Conversion table
| 1 uJ | 1000 nJ |
| 5 uJ | 5000 nJ |
| 10 uJ | 10000 nJ |
| 20 uJ | 20000 nJ |
| 50 uJ | 50000 nJ |
| 100 uJ | 100000 nJ |
| 500 uJ | 500000 nJ |
| 1000 uJ | 1000000 nJ |
Related conversions
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How the formula works
Both microjoule and nanojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in microjoules by 1000 to get nanojoules. To reverse the conversion, multiply a nanojoule value by 0.001 to get back to microjoules.
Frequently asked questions
What is Microjoule (uJ)?
A microjoule (uJ) is a metric-prefixed unit of energy equal to 10-6 joules, a fraction of a single joule, using the SI micro prefix.
What is Nanojoule (nJ)?
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
How do I convert microjoules to nanojoules?
Multiply the microjoule value by 1000 to get the equivalent in nanojoules. For example, 5 uJ × 1000 = 5000 nJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000 is an exact, non-rounded value.
Can I convert nanojoules back to microjoules?
Yes. Divide the nanojoule value by 1000, or multiply it by 0.001, to get microjoules.
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About converting microjoules to nanojoules
A microjoule (uJ) is a metric-prefixed unit of energy equal to 10-6 joules, a fraction of a single joule, using the SI micro prefix. A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
Use this calculator to move between microjoules and nanojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.